Halyard stopper



FIG. 1 is a perspective view of a halyard stopper embodying the ornamental features of my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a view of one side thereof;

FIG. 4 is a view of the opposite side thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof; and

FIG. 7 is a bottom view thereof. 

The ornamental design for a halyard stopper, substantially as shown. 